Home / 298,955,226.40-448,432,839.60-221,471,128.60

Finding the Fourth Proportional to 298,955,226.40, 448,432,839.60 and 221,471,128.60

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Solution

The fourth proportional to 298,955,226.40, 448,432,839.60 and 221,471,128.60 is: 332,206,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,955,226.40 : 448,432,839.60 = 221,471,128.60 : x
  2. Step 2: Convert to fraction form
    298,955,226.40/448,432,839.60 = 221,471,128.60/x
  3. Step 3: Cross multiply
    298,955,226.40x = 448,432,839.60 × 221,471,128.60
  4. Step 4: Simplify right side
    298,955,226.40x = 99,314,927,087,514,768
  5. Step 5: Solve for x
    x = 99,314,927,087,514,768/298,955,226.40
  6. Step 6: Final answer
    x = 332,206,692.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.